1. Nephrinuria and podocytopathies 000Irena Kostovska, Katerina Tosheska Trajkovska, Sonja Topuzovska, Svetlana Cekovska, Danica Labudovic, Ognen Kostovski, and Goce Spasovski2. Diabetes and cognitive decline Chiara Bellia, Mauro Lombardo, Marco Meloni, David Della-Morte, Alfonso Bellia, and Davide Lauro3. Testosterone analysis in prostate cancer patients Lennart J. van Winden and Huub H. van Rossum4. Extracellular vesicles in respiratory disease Jonathan M. Carnino and Heedoo Lee5. Screening for gastrointestinal and pancreatic diseases Lisa Johnson6. Mono/polyclonal free light chains as challenging biomarkers for immunological abnormalities Cecilia Napodano, Krizia Pocino, Francesca Gulli, Elena Rossi, Gian Ludovico Rapaccini, Mariapaola Marino, and Umberto Basile